MAX1686HEUA

Special Purpose Regulators Overview

The MAX1686HEUA is a switching regulator IC designed as a charge pump for SIM card applications. It operates with an input voltage range of 2.7 V to 4.2 V and provides a regulated 5 V output at up to 12 mA. The device features a shutdown function, low static current of 45 uA, and a 1 MHz switching frequency. It is housed in an 8-uMAX package and functions within a temperature range of -40°C to +85°C.

Special Purpose Regulators Feature Summary

• Regulating charge pump topology optimized for SIM card power requirements
• Integrated shutdown control for power management
• Low quiescent current operation for battery efficiency

Special Purpose Regulators Applications

• SIM card voltage regulation
• Portable communication devices
• Mobile phone power systems

Special Purpose Regulators Procurement Notes

Verify component authenticity through authorized channels due to limited supply status. Confirm RoHS compliance and lead times with suppliers. Check for obsolescence notices or lifecycle changes from Analog Devices before finalizing procurement plans.

Special Purpose Regulators Selection Notes

Select this component when a compact boost converter is needed for SIM interfaces. Ensure input voltage stays within 2.7 V to 4.2 V limits. Consider the 8-pin uMAX package constraints for PCB layout and thermal management in space-constrained designs.

Special Purpose Regulators Part Context

Part of the MAX1686H series from Maxim Integrated, now part of Analog Devices. This specific HEUA variant denotes the 8-lead uMAX package configuration. It serves as a specialized PMIC solution for low-power mobile applications requiring stable SIM voltages.

Special Purpose Regulators Replacement Considerations

The MAX1686HEUA+ is listed as a direct replacement. Verify pin compatibility and regulatory compliance differences between the non-RoHS HEUA and the plus suffix version.